Written by Dr Rose Dileva. Posted in Pet Health.

Ask The Vet

Approximately 20 years ago I received a telephone call from a physician in California. He was interested in speaking with me about my treatment of cancer with high doses of ascorbic acid (Vitamin C). He had heard from the manufacturer who produces the intravenous form of Vitamin C that I was utilizing this treatment in animals with cancer. It was a very interesting conversation since he had been doing it in humans for almost 30 years! I was totally surprised. I had done much research on the topic and was confused as to why this was not a treatment that was being utilized and researched in both humans and animals. Why was this information not utilized? In my opinion, one of the reasons for this is that vitamins cannot be patented; therefore, it cannot be a source of income.  The big pharmaceutical companies won’t make money. It is that simple. These drug companies are in business to make profits for their share holders, not to “cure disease.” Just listen to the number of side effects on a drug commercial, all the while watching a family play in the park while having a picnic ! Sure, your cholesterol may go down, but you also could have a stroke, heart attack and even die as an “adverse event.”
Vitamin C happens to be one of the most potent biological antioxidants on the planet.    It has been shown to be antiviral, antihypertensive, airway protective, ophthalmoprotective, and has heavy- metal detoxifying properties. Interest in Vitamin C peaked in the 1970’s when Dr. Linus Pauling noted that intravenous Vitamin C was beneficial to cancer patients.  After that, the Mayo Clinic conducted a study themselves. Their conclusion was that Vitamin C was not helpful. The truth is that the Mayo Clinic studied Vitamin C taken orally by mouth, not intravenously into a vein.  This is a major difference. The same method was not even studied.   Consequently, the Mayo Clinic did NOT study intravenous Vitamin C. As a matter of fact, during 2005-2006 studies showed that maximum blood concentrations of Vitamin C were achieved by the intravenous route. Early clinical studies also found that intravenous Vitamin C could improve symptoms and prolong life in terminal cancer patients. High dose intravenous ascorbic acid (the scientific name for vitamin C), has been used as a therapy for bacterial infection, viral infection and as adjuvant therapy for cancer patients. It helps the immune system neutralize bacterial and fungal infections. The National Institute of Health (NIH) has published evidence demonstrating its anti-cancer properties. Vitamin C also boosts the immune system and it inhibits an enzyme that tumors use to spread and metastasize to other organs. It induces apoptosis (programmed cell death) of cancer cells. It also helps patients undergoing chemotherapy by improving appetite, heal faster, improve resistance to infection, reduce pain, and have a better sense of well being. Needless to say, I was compelled to add this therapy in my approach to cancer in my own patients. 
Vitamin C at higher doses and when given in sufficient amounts intravenously will cause remarkable changes. At sufficient amounts, unlike typical cancer treatments, Vitamin C, given intravenously, will raise the level of hydrogen peroxide in the bloodstream and kills cancer cells leaving normal cells alone.  What a tremendous finding!
Vitamin C is extremely safe and non-toxic. The National Institute of Health  knew this information from prior to 2005. The media, however, neglected to publish this information.  Unfortunately, the public, those that need this information and help, were left in the trash. For those of you interested, research papers and references are available very readily.
For 17 years now, I have treated numerous cancer patients with intravenous Vitamin C. The protocol is mine and I have developed and modified it over the past 17 years. I have found it to be extremely beneficial. Not only do these pets handle the treatment without issue, but they have a good quality of life during and after treatment. I have observed no negative side effects and the patient maintains a good quality of life.   
It appears to me that the cancer is managed. These dogs and cats “live” with their cancer. I have had cases in which dogs or cats with tumors in the abdomen have lived a good quality of life and lived months to years beyond what was anticipated. I had an 8 year old, feline patient, which had a tumor in its abdomen the size of a baseball. “Smokes” life was extended by five years, at which point his owner moved out of the country and I lost contact with them. The tumor did not grow or spread to any other organ in his body. In other words, we managed his cancer. It is my opinion that if you provide the body with what it needs, it will fight to heal itself.
My goal is to keep my cancer patients happy, healthy, and maintaining a good quality of life, in spite of their cancer. This can be done without the harsh side effects of some other common cancer treatments. There is no reason why our family pets that are suffering from cancer, feel worse as a result of the medications they are taking, or treatments they are receiving. I have utilized intravenous vitamin C infusions as a major part of my integrative treatment for cancer. I have been very pleased with the results. 

Dr. Rose DiLeva is a 1987 graduate of the University of Pennsylvania’s school of Veterinary Medicine. She practices alternative and conventional veterinary medicine. Dr. DiLeva is a certified veterinary acupuncturist and a certified veterinary chiropractitioner. She can be reached at her Animal Wellness Center in Chadds Ford, Pa. at 610-558-1616 for appointments and telephone consultations. Her web site is and

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